Add support for URL and URLSearchParams

The workaround in
DefinitelyTyped/DefinitelyTyped#34960 (comment)
was used to provide type compatibility with NodeJS and the dom types.

.eslintrc.yaml

@@ -1,3 +1,5 @@
 extends:
   - remcohaszing
   - remcohaszing/jest
+rules:
+  jsdoc/require-jsdoc: off

package.json

@@ -16,6 +16,9 @@
     "url": "https://github.com/remcohaszing/estree-util-value-to-estree/issues"
   },
   "homepage": "https://github.com/remcohaszing/estree-util-value-to-estree#readme",
+  "engines": {
+    "node": ">=10.0.0"
+  },
   "keywords": [
     "esast",
     "estree",

src/index.test.ts

@@ -198,6 +198,34 @@ describe('valueToEstree', () => {
     });
   });
 
+  it('should handle URL', () => {
+    expect(valueToEstree(new URL('https://example.com'))).toStrictEqual({
+      type: 'NewExpression',
+      callee: { type: 'Identifier', name: 'URL' },
+      arguments: [
+        {
+          type: 'Literal',
+          value: 'https://example.com/',
+          raw: '"https://example.com/"',
+        },
+      ],
+    });
+  });
+
+  it('should handle URLSearchParams', () => {
+    expect(valueToEstree(new URLSearchParams('everything=awesome'))).toStrictEqual({
+      type: 'NewExpression',
+      callee: { type: 'Identifier', name: 'URLSearchParams' },
+      arguments: [
+        {
+          type: 'Literal',
+          value: 'everything=awesome',
+          raw: '"everything=awesome"',
+        },
+      ],
+    });
+  });
+
   it('should handle object literals', () => {
     expect(valueToEstree({ number: 1, string: 'Hello', nothing: null })).toStrictEqual({
       type: 'ObjectExpression',

src/index.ts

@@ -1,5 +1,13 @@
 import { Expression } from 'estree';
 
+// https://github.com/DefinitelyTyped/DefinitelyTyped/issues/34960#issuecomment-576906058
+declare const URL: typeof globalThis extends { URL: infer URLCtor }
+  ? URLCtor
+  : typeof import('url').URL;
+declare const URLSearchParams: typeof globalThis extends { URL: infer URLSearchParamsCtor }
+  ? URLSearchParamsCtor
+  : typeof import('url').URLSearchParams;
+
 /**
  * A value that can be serialized by `estree-util-from-value`.
  */
@@ -12,17 +20,14 @@ export type Value =
   | Uint8ClampedArray
   | Uint16Array
   | Uint32Array
+  | URL
+  | URLSearchParams
   | Value[]
   | boolean
   | number
   | string
   // eslint-disable-next-line @typescript-eslint/consistent-indexed-object-style
-  | {
-      /**
-       * Recursively allow serializing values in objects.
-       */
-      [key: string]: Value;
-    }
+  | { [key: string]: Value }
   | null
   | undefined;
 
@@ -88,6 +93,13 @@ export function valueToEstree(value?: Value): Expression {
       arguments: [valueToEstree([...value])],
     };
   }
+  if (value instanceof URL || value instanceof URLSearchParams) {
+    return {
+      type: 'NewExpression',
+      callee: { type: 'Identifier', name: value.constructor.name },
+      arguments: [valueToEstree(String(value))],
+    };
+  }
   return {
     type: 'ObjectExpression',
     properties: Object.entries(value).map(([name, val]) => ({

tsconfig.json

@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "declaration": true,
-    "lib": ["es2018"],
+    "lib": ["es2018", "dom"],
     "module": "commonjs",
     "noEmit": true,
     "noImplicitAny": true,